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  1. Joined
    29 Sep '04
    Moves
    6940
    11 Jun '19 06:33
    Why is that an illegal move on this sight? What is the damn malfunction?
  2. e4
    Joined
    06 May '08
    Moves
    27782
    11 Jun '19 06:48
    Hi Ichmude,

    If during castling the King passes over a square that is being attacked, in the case
    of Queen side castling, that is the squares d1, c1 and b1. then it is not allowed.
  3. Joined
    12 Jul '08
    Moves
    12837
    11 Jun '19 07:41
    @ichmude said
    Why is that an illegal move on this sight? What is the damn malfunction?
    Here is a complete game of yours where both people castled ong.

  4. SubscriberBigDoggProblem
    Just...the Dogg
    bigdogghouse.com/RHP
    Joined
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    11 Jun '19 14:12
    @greenpawn34 said
    Hi Ichmude,

    If during castling the King passes over a square that is being attacked, in the case
    of Queen side castling, that is the squares d1, c1 and b1. then it is not allowed.
    b1 is OK. The King stops short of it.
  5. e4
    Joined
    06 May '08
    Moves
    27782
    11 Jun '19 16:482 edits
    @BigDoggProblem

    I know, I was away with the fairies there. Stopped what I was doing about 30
    minutes ago and remembered what I had said. 😀

    Expecting someone to come back and say:
    "Hey: when I castle Queen side my King stops on c1 , what is wrong?"
  6. Joined
    12 Jul '08
    Moves
    12837
    11 Jun '19 17:171 edit
    @greenpawn34

    Reminds me of some kids I watched playing when I first started to try to learn to play chess. One kid castles with his queen to b1 and rook to c1. He called it quastling and believed it was a legal move.
  7. Standard memberbyedidia
    Mister Why
    San Carlos, CA
    Joined
    21 Feb '12
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    5658
    11 Jun '19 20:52
    @Eladar

    Quastling! I can't wait to use that in one of my games!
  8. Standard memberwolfgang59
    Mr. Wolf
    at home
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    46050
    11 Jun '19 23:57
    Yuri Averbakh vs. Cecil John Seddon Purdy
    Australian Championship |Adelaide, Australia | Round 4 |1960

    According to GM Larry Evans and his book "Chess Catechism":

    "Black castled queenside. Averbakh pointed out that the rook passed
    over a square controlled by White and thought it was illegal. Purdy
    proved that the castling was legal since this applies only to the king,
    to which Averbakh replied: "Only the king? Not the rook?"



    http://www.chessgames.com/perl/chessgame?gid=1329062&kpage=1
  9. SubscriberPaul Leggett
    Chess Librarian
    The Stacks
    Joined
    21 Aug '09
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    102369
    12 Jun '19 01:06
    @wolfgang59 said
    Yuri Averbakh vs. Cecil John Seddon Purdy
    Australian Championship |Adelaide, Australia | Round 4 |1960

    According to GM Larry Evans and his book "Chess Catechism":

    "Black castled queenside. Averbakh pointed out that the rook passed
    over a square controlled by White and thought it was illegal. Purdy
    proved that the castling was legal since this applies onl ...[text shortened]... "Only the king? Not the rook?"



    http://www.chessgames.com/perl/chessgame?gid=1329062&kpage=1
    I remember reading about Korchnoi questioning the rules about queenside castling in a game once as well, so the rule must be a little fuzzier than one would believe.
  10. Subscribervenda
    Dave
    S.Yorks.England
    Joined
    18 Apr '10
    Moves
    61029
    12 Jun '19 12:13
    As far as I know the rule regarding "checked" squares only applies to the King so the roook can pass through a square controlled by the opponent
  11. SubscriberRuss
    RHP Code Monkey
    RHP HQ
    Joined
    21 Feb '01
    Moves
    1952
    12 Jun '19 12:42
    I've been R&Ding chess variant support - castling support for some variants can get quite a bit more complex. For example : double chess, a 16*8 board with 4 rooks each.

    If this ever sees the light of day, future me will surely regret it...I can only imagine the number of support questions regarding castling.
  12. Subscribermoonbus
    Uber-Nerd
    Joined
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    2510
    12 Jun '19 16:51
    @ichmude said
    Why is that an illegal move on this sight? What is the damn malfunction?
    The malfunction is the one sitting in front of the monitor. Learn the rules and this problem will go away.
  13. Donationmwmiller
    RHP Member No.16
    Joined
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    12 Jun '19 18:22

    Removed by poster

  14. Donationmwmiller
    RHP Member No.16
    Joined
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    68466
    13 Jun '19 01:00
    EDIT:
    Let me try this again. I did not do a good job of proof-reading my previous post.

    The only restriction on the rook that is castling is that it cannot have already been moved.

    The king cannot have already moved, and he also cannot castle while in check and he cannot move across or end up on a square that is under attack by the opponent.

    And lastly, all squares between the king and the rook that is involved in castling must be empty.

    I believe those are all of the rules for castling.
  15. Subscribermoonbus
    Uber-Nerd
    Joined
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    2510
    13 Jun '19 06:55
    @russ said
    I've been R&Ding chess variant support - castling support for some variants can get quite a bit more complex. For example : double chess, a 16*8 board with 4 rooks each.

    If this ever sees the light of day, future me will surely regret it...I can only imagine the number of support questions regarding castling.
    Be sure to include quastling.
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